Comparison

Spectrum AUv3 FFT Visualizer vs SessionDock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Spectrum AUv3 FFT Visualizer

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Turn sound into stunning visuals with Spectrum, an AUv3-compatible real-time spectrum analyzer for audio signals. Effortlessly monitor 29 specific frequencies from 10 Hz to 20 kHz with precision, powered by Fast Fourier Transform (FFT) data. Spectrum’s sleek graphics feature vertical markers, filled paths, and a smooth gradient background for an immersive visual experience. Enjoy accurate frequency placement with logarithmic scaling, and interact seamlessly using touch to highlight specific frequencies. Designed for performance, it dynamically adjusts to real-time data, transforms decibels, and ensures smooth, optimized rendering for flawless updates.

About

SessionDock

Browse and preview your music projects, notes, and metadata from your Mac on your iPhone. This read-only companion app keeps your desktop library intact while offering waveform note viewing and CarPlay support for on-the-go reference.

Highlights
  • View all saved sessions
  • Preview session audio/mixdown
  • Read project notes and metadata
  • Waveform notes viewer
  • CarPlay support
  • Read-only interface
Features
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Note: This app requires SessionDock for macOS to sync and view your sessions. SessionDock Companion – View Your Sessions Anywhere SessionDock Companion lets you browse your SessionDock sessions from your Mac, right on your iPhone. Quickly view your projects, notes, and metadata in a clean, read-only interface. The Companion app is designed for safe reference—no editing, tagging, or changes—so your desktop library always stays intact. New in this version: Waveform Notes Viewer See timestamped notes directly on your mixdown waveform. Tap “Show Notes” to reveal markers that highlight in sync with playback, and use the Session Notes list below to jump to any moment. It’s a powerful way to review your creative thoughts while listening on the go. Key Features • View all sessions saved from the desktop app • Preview session audio/mixdown. • Read project names, notes, and metadata • Fast, lightweight, and read-only • Keeps your creative catalog consistent and secure • CarPlay support — browse and play session previews hands-free while driving SessionDock Companion makes it easy to stay connected to your music projects wherever you go. For more details about SessionDock Pro subscriptions: Privacy Policy: https://sessiondock.com/privacy.txt Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Spectrum AUv3 FFT Visualizer2 screens
SessionDock4 screens

Verdict

The call

The clearest difference is price: SessionDock at Free against Spectrum AUv3 FFT Visualizer's $0.99. SessionDock also leads on update cadence (every 11 days vs every 12 months). Spectrum AUv3 FFT Visualizer's advantage is in-app purchases (none vs 5) and iOS requirement (15.0 vs 18.6). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

SessionDock is free to download; Spectrum AUv3 FFT Visualizer costs $0.99 up front. SessionDock sells 5 in-app purchases, starting at $4.99 per month. Spectrum AUv3 FFT Visualizer asks for nothing beyond the download.

UpkeepUpdate frequency

Spectrum AUv3 FFT Visualizer ships an update every 12 months, SessionDock every 11 days. Both last shipped on September 20, 2026.

Scorecard4 real differences · 6 level
Spectrum AUv3 FFT Visualizer versus SessionDock: the parameters behind the verdict, then further details
ParameterSpectrum AUv3 FFT VisualizerSessionDock
Price$0.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 12 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, Mac, Apple TV
Requires iOS15.0 — better18.6
Further details — not scored
Size10 MB11 MB
Age rating4+4+
DeveloperDiscoDSP LLCWARNER WEB DEVELOPMENT LLC

In-app purchases

None

Spectrum AUv3 FFT Visualizer

No in-app purchases

5 purchases

SessionDock

Subscriptions4
  • SessionDock Share Monthly$4.991 Month
  • SessionDock Pro$5.991 Month
  • SessionDock Share Yearly$39.991 Year
Show 1 more
  • SessionDock Pro$49.991 Year
One-time1
  • SessionDock Pro (Lifetime)$39.99

Questions

Is Spectrum AUv3 FFT Visualizer free?
Spectrum AUv3 FFT Visualizer costs $0.99, with no in-app purchases.
Is SessionDock free?
SessionDock is free to download, with in-app purchases available.
Do Spectrum AUv3 FFT Visualizer or SessionDock have ads?
Neither Spectrum AUv3 FFT Visualizer nor SessionDock shows ads.
Which is updated more often, Spectrum AUv3 FFT Visualizer or SessionDock?
Spectrum AUv3 FFT Visualizer ships an update every 12 months, and SessionDock every 11 days. Most recently, Spectrum AUv3 FFT Visualizer was updated on September 20, 2026 and SessionDock on September 20, 2026.

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